Patents by Inventor Hideaki Nakakita
Hideaki Nakakita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20130252554Abstract: A wireless communication device includes a first wireless communication device that conforms to the Bluetooth standard, and a second wireless communication device that conforms to a second wireless communication standard different from the Bluetooth standard. The first and second wireless communication device are connected to each other by means of a signal line by which wireless communication arbitration control between the two devices is carried out. When Bluetooth communication between the first wireless communication device and a third wireless communication device is granted, a mask setting component generates a mask interval, during which the second wireless communication device is not permitted to perform wireless communication.Type: ApplicationFiled: March 4, 2013Publication date: September 26, 2013Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Hideaki NAKAKITA
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Patent number: 8364735Abstract: Random numbers output from a random-number generation circuit, for which an optimized control parameter is set, at a predetermined timing after power-on reset are obtained after each power-on reset, by repeating the power-on reset with respect to a system LSI for a preset number of times, and a test of the obtained predetermined number of random numbers is performed by using a test circuit incorporated in the system LSI to determine the quality of the random-number generation circuit incorporated in the system LSI.Type: GrantFiled: October 16, 2008Date of Patent: January 29, 2013Assignee: Kabushiki Kaisha ToshibaInventor: Hideaki Nakakita
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Patent number: 8355504Abstract: An AV communication control circuit suitable for a radio LAN-LSI in a radio AV transmission/reception device is formed by a copyright protection processing unit configured to carry out a copyright protection processing with respect to AV data entered from an AV stream signal line, a selection unit configured to select either one of AV data entered from an AV stream signal line through the copyright protection processing unit and AV data entered from a general purpose bus, and a transmission control unit configured to carry out control for transmitting AV data selected by the selection unit to a network.Type: GrantFiled: May 6, 2011Date of Patent: January 15, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Takeshi Saito, Hiroshi Isozaki, Koji Kanazawa, Hideaki Nakakita
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Publication number: 20110209226Abstract: An AV communication control circuit suitable for a radio LAN-LSI in a radio AV transmission/reception device is formed by a copyright protection processing unit configured to carry out a copyright protection processing with respect to AV data entered from an AV stream signal line, a selection unit configured to select either one of AV data entered from an AV stream signal line through the copyright protection processing unit and AV data entered from a general purpose bus, and a transmission control unit configured to carry out control for transmitting AV data selected by the selection unit to a network.Type: ApplicationFiled: May 6, 2011Publication date: August 25, 2011Applicant: Kabushiki Kaisha ToshibaInventors: Takeshi SAITO, Hiroshi ISOZAKI, Koji KANAZAWA, Hideaki NAKAKITA
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Patent number: 7962154Abstract: A wireless base station which controls joining of a plurality of wireless terminals to a wireless network, stores a maximum joining possible terminal number which indicates a maximum number of the wireless terminals of each terminal type that can join the wireless network simultaneously, and which is set in advance for each one of a plurality of terminal types that classify the wireless terminals, and a currently joining terminal number which indicates a number of the wireless terminals of each terminal type that are currently joining the wireless network, for each one of the plurality of the terminal types. Then, the wireless base station judges whether the joining of one wireless terminal of one terminal type which sent a request message to the wireless network is permitted or not, according to the maximum joining possible terminal number for the one terminal type and the currently joining terminal number stored for the one terminal type.Type: GrantFiled: November 29, 2007Date of Patent: June 14, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Nakakita, Hiroshi Isozaki, Keiji Tsunoda, Kiyoshi Toshimitsu, Takeshi Saito, Taku Kato
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Publication number: 20090106615Abstract: Random numbers output from a random-number generation circuit, for which an optimized control parameter is set, at a predetermined timing after power-on reset are obtained after each power-on reset, by repeating the power-on reset with respect to a system LSI for a preset number of times, and a test of the obtained predetermined number of random numbers is performed by using a test circuit incorporated in the system LSI to determine the quality of the random-number generation circuit incorporated in the system LSI.Type: ApplicationFiled: October 16, 2008Publication date: April 23, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Hideaki Nakakita
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Patent number: 7480247Abstract: A packet switch and a packet switching method capable of taking the full advantage of the transfer capability of the packet switch by avoiding the influence due to the congestion are disclosed. In the packet switch, the priority level according to the congestion states of the transfer target is attached to a packet, and the processing at a time of packet collision is carried out by accounting for this priority level, so that it becomes possible to carry out the packet transfer control according to the congestion status of the transfer target of each packet.Type: GrantFiled: September 23, 2003Date of Patent: January 20, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Yoshimitsu Shimojo, Hideaki Nakakita
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Publication number: 20080148053Abstract: A wireless base station which controls joining of a plurality of wireless terminals to a wireless network, stores a maximum joining possible terminal number which indicates a maximum number of the wireless terminals of each terminal type that can join the wireless network simultaneously, and which is set in advance for each one of a plurality of terminal types that classify the wireless terminals, and a currently joining terminal number which indicates a number of the wireless terminals of each terminal type that are currently joining the wireless network, for each one of the plurality of the terminal types. Then, the wireless base station judges whether the joining of one wireless terminal of one terminal type which sent a request message to the wireless network is permitted or not, according to the maximum joining possible terminal number for the one terminal type and the currently joining terminal number stored for the one terminal type.Type: ApplicationFiled: November 29, 2007Publication date: June 19, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki NAKAKITA, Hiroshi ISOZAKI, Keiji TSUNODA, Kiyoshi TOSHIMITSU, Takeshi SAITO, Taku KATO
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Publication number: 20080098487Abstract: An AV communication control circuit suitable for a radio LAN-LSI in a radio AV transmission/reception device is formed by a copyright protection processing unit configured to carry out a copyright protection processing with respect to AV data entered from an AV stream signal line, a selection unit configured to select either one of AV data entered from an AV stream signal line through the copyright protection processing unit and AV data entered from a general purpose bus, and a transmission control unit configured to carry out control for transmitting AV data selected by the selection unit to a network.Type: ApplicationFiled: October 31, 2007Publication date: April 24, 2008Applicant: Kabushiki Kaisha ToshibaInventors: Takeshi Saito, Hiroshi Isozaki, Koji Kanazawa, Hideaki Nakakita
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Patent number: 7324805Abstract: In the disclosed registration and authentication scheme, in the case of carrying out the registration and authentication of a wireless terminal with respect to a wireless base station provided inside the home, for example, a user of the wireless terminal must directly operate the wireless base station. For this reason, it is possible to prevent the registration and authentication of a wireless terminal of an external user who cannot easily operate the wireless base station, and thereby it is possible to realize the secure and easy registration and authentication processing even when the wireless communications are used.Type: GrantFiled: August 13, 2004Date of Patent: January 29, 2008Assignee: Kabushiki Kaish ToshibaInventors: Hideaki Nakakita, Yoshiaki Takabatake
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Patent number: 7324822Abstract: A wireless base station which controls joining of a plurality of wireless terminals to a wireless network, stores a maximum joining possible terminal number which indicates a maximum number of the wireless terminals of each terminal type that can join the wireless network simultaneously, and which is set in advance for each one of a plurality of terminal types that classify the wireless terminals, and a currently joining terminal number which indicates a number of the wireless terminals of each terminal type that are currently joining the wireless network, for each one of the plurality of the terminal types. Then, the wireless base station judges whether the joining of one wireless terminal of one terminal type which sent a request message to the wireless network is permitted or not, according to the maximum joining possible terminal number for the one terminal type and the currently joining terminal number stored for the one terminal type.Type: GrantFiled: January 27, 2006Date of Patent: January 29, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Nakakita, Hiroshi Isozaki, Keiji Tsunoda, Kiyoshi Toshimitsu, Takeshi Saito, Taku Kato
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Patent number: 7308098Abstract: An AV communication control circuit suitable for a radio LAN-LSI in a radio AV transmission/reception device is formed by a copyright protection processing unit configured to carry out a copyright protection processing with respect to AV data entered from an AV stream signal line, a selection unit configured to select either one of AV data entered from an AV stream signal line and AV data entered from a general purpose bus, and a transmission control unit configured to carry out control for transmitting AV data selected by the selection unit to a network.Type: GrantFiled: November 28, 2003Date of Patent: December 11, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Takeshi Saito, Hiroshi Isozaki, Koji Kanazawa, Hideaki Nakakita
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Patent number: 7143436Abstract: In a device authentication management system in which a device acquires a secret information from an authentication management unit and carries out an authentication in order to carry out communications with another device by using the secret information, the authentication management unit generates the secret information that contains a first authentication information for carrying out communications between the authentication management unit and the device, and a second authentication information for carrying out communications between the device and the another device; carries out the authentication in order to carry out communications with the device, by using the first authentication information; and transmits the second authentication information according to the authentication.Type: GrantFiled: September 25, 2002Date of Patent: November 28, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Kensaku Yamaguchi, Hideaki Nakakita, Mikio Hashimoto
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Patent number: 7136997Abstract: A network of radio devices is managed by carrying out a radio device registration at a registering authentication server when it is possible to communicate with all the authentication servers, distributing registration information to the authentication servers, managing the registration information at each one of the authentication servers, carrying out a radio device deletion at a deleting authentication server, distributing deletion information to the authentication servers, and deleting the radio device from the registration information according to the deletion information at each one of the authentication servers.Type: GrantFiled: September 13, 2002Date of Patent: November 14, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Kensaku Yamaguchi, Hideaki Nakakita, Mikio Hashimoto
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Publication number: 20060135209Abstract: A wireless base station which controls joining of a plurality of wireless terminals to a wireless network, stores a maximum joining possible terminal number which indicates a maximum number of the wireless terminals of each terminal type that can join the wireless network simultaneously, and which is set in advance for each one of a plurality of terminal types that classify the wireless terminals, and a currently joining terminal number which indicates a number of the wireless terminals of each terminal type that are currently joining the wireless network, for each one of the plurality of the terminal types. Then, the wireless base station judges whether the joining of one wireless terminal of one terminal type which sent a request message to the wireless network is permitted or not, according to the maximum joining possible terminal number for the one terminal type and the currently joining terminal number stored for the one terminal type.Type: ApplicationFiled: January 27, 2006Publication date: June 22, 2006Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki Nakakita, Hiroshi Isozaki, Keiji Tsunoda, Kiyoshi Toshimitsu, Takeshi Saito, Taku Kato
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Publication number: 20060121918Abstract: A wireless base station which controls joining of a plurality of wireless terminals to a wireless network, stores a maximum joining possible terminal number which indicates a maximum number of the wireless terminals of each terminal type that can join the wireless network simultaneously, and which is set in advance for each one of a plurality of terminal types that classify the wireless terminals, and a currently joining terminal number which indicates a number of the wireless terminals of each terminal type that are currently joining the wireless network, for each one of the plurality of the terminal types. Then, the wireless base station judges whether the joining of one wireless terminal of one terminal type which sent a request message to the wireless network is permitted or not, according to the maximum joining possible terminal number for the one terminal type and the currently joining terminal number stored for the one terminal type.Type: ApplicationFiled: January 27, 2006Publication date: June 8, 2006Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki Nakakita, Hiroshi Isozaki, Keiji Tsunoda, Kiyoshi Toshimitsu, Takeshi Saito, Taku Kato
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Patent number: 7024204Abstract: A wireless base station which controls joining of a plurality of wireless terminals to a wireless network, stores a maximum joining possible terminal number which indicates a maximum number of the wireless terminals of each terminal type that can join the wireless network simultaneously, and which is set in advance for each one of a plurality of terminal types that classify the wireless terminals, and a currently joining terminal number which indicates a number of the wireless terminals of each terminal type that are currently joining the wireless network, for each one of the plurality of the terminal types. Then, the wireless base station judges whether the joining of one wireless terminal of one terminal type which sent a request message to the wireless network is permitted or not, according to the maximum joining possible terminal number for the one terminal type and the currently joining terminal number stored for the one terminal type.Type: GrantFiled: July 10, 2003Date of Patent: April 4, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Nakakita, Hiroshi Isozaki, Keiji Tsunoda, Kiyoshi Toshimitsu, Takeshi Saito, Taku Kato
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Publication number: 20050014503Abstract: In the disclosed registration and authentication scheme, in the case of carrying out the registration and authentication of a wireless terminal with respect to a wireless base station provided inside the home, for example, a user of the wireless terminal must directly operate the wireless base station. For this reason, it is possible to prevent the registration and authentication of a wireless terminal of an external user who cannot easily operate the wireless base station, and thereby it is possible to realize the secure and easy registration and authentication processing even when the wireless communications are used.Type: ApplicationFiled: August 13, 2004Publication date: January 20, 2005Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki Nakakita, Yoshiaki Takabatake
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Patent number: 6782260Abstract: In the disclosed registration and authentication scheme, in the case of carrying out the registration and authentication of a wireless terminal with respect to a wireless base station provided inside the home, for example, a user of the wireless terminal must directly operate the wireless base station. For this reason, it is possible to prevent the registration and authentication of a wireless terminal of an external user who cannot easily operate the wireless base station, and thereby it is possible to realize the secure and easy registration and authentication processing even when the wireless communications are used.Type: GrantFiled: November 16, 2001Date of Patent: August 24, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Nakakita, Yoshiaki Takabatake
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Publication number: 20040133780Abstract: An AV communication control circuit suitable for a radio LAN-LSI in a radio AV transmission/reception device is formed by a copyright protection processing unit configured to carry out a copyright protection processing with respect to AV data entered from an AV stream signal line, a selection unit configured to select either one of AV data entered from an AV stream signal line and AV data entered from a general purpose bus, and a transmission control unit configured to carry out control for transmitting AV data selected by the selection unit to a network.Type: ApplicationFiled: November 28, 2003Publication date: July 8, 2004Applicant: Kabushiki Kaisha ToshibaInventors: Takeshi Saito, Hiroshi Isozaki, Koji Kanazawa, Hideaki Nakakita